(New page: Topics: attributes in grammar symbols; syntax-directed evaluation. Synthesized attributes: passed from child nodes to parent nodes. Inherited attributes: may be passed from parent- to ch...) |
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Topics: attributes in grammar symbols; syntax-directed evaluation.
Synthesized attributes: passed from child nodes to parent nodes.
Inherited attributes: may be passed from parent- to child nodes or between siblings.
S-grammars: only synthesized attributes.
L-grammars: inherited attributes are only dependent on the parents' attributes or on the older brothers' (i.e., when evaluating left-to-right, only previously seen attributes are needed).